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Last modified: December 2010

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AHELP for CIAO 4.3 Sherpa v1


Context: modeling


Erase data and model settings in a Sherpa session


clean( )


The clean() function erases all data set IDs and model assignments established in a Sherpa session. This function accepts no arguments.


sherpa> clean()

The clean() function resets a Sherpa session by erasing all user-defined data and model settings.

sherpa> print(get_data(2))
name           = 1843.pi
channel        = Float64[1024]
counts         = Float64[1024]
staterror      = None
syserror       = None
bin_lo         = None
bin_hi         = None
grouping       = None
quality        = None
exposure       = 7854.46647487
backscal       = 0.00085461636003
areascal       = 1.0
grouped        = False
subtracted     = False
units          = energy
response_ids   = [1]
background_ids = []

sherpa> show_model(2)
Model: 1
apply_rmf(apply_arf((7854.46647487 * powlaw1d.p1)))
   Param        Type          Value          Min          Max      Units
   -----        ----          -----          ---          ---      -----
   p1.gamma     thawed            1          -10           10           
   p1.ref       frozen            1 -3.40282e+38  3.40282e+38           
   p1.ampl      thawed            1            0  3.40282e+38 

sherpa> clean()

sherpa> print(get_data(2))
IdentifierError'>: data set 2 has not been set

sherpa> show_model(2)


See the bugs pages on the Sherpa website for an up-to-date listing of known bugs.

See Also

copy_data, dataspace1d, dataspace2d, delete_data, fake, get_axes, get_bkg_plot, get_counts, get_data, get_data_plot, get_dep, get_dims, get_error, get_quality, get_specresp, get_staterror, get_syserror, group_sherpa, load_ascii, load_data, load_grouping, load_quality, set_data, set_quality, ungroup, unpack_ascii, unpack_data
get_filter, load_filter, set_filter
get_default_id, list_data_ids, list_model_ids, list_response_ids, show_bkg_model, show_bkg_source
add_model, add_user_pars, create_model_component, delete_bkg_model, delete_model, delete_model_component, get_model, get_model_autoassign_func, get_model_component, get_model_component_image, get_model_component_plot, get_model_plot, get_num_par, get_order_plot, get_par, get_pileup_model, get_source, get_source_component_image, get_source_component_plot, image_model, image_model_component, image_source, image_source_component, integrate, link, load_table_model, load_user_model, reset, save_model, save_source, set_bkg_model, set_full_model, set_model_autoassign_func, set_pileup_model, set_source, set_xsabund, set_xscosmo, set_xsxsect, set_xsxset
plot_data, plot_model, plot_model_component, plot_source, plot_source_component, set_xlinear, set_xlog, set_ylinear, set_ylog
delete_psf, load_conv
save_delchi, save_error, save_filter, save_grouping, save_quality, save_resid, save_staterror, save_syserror
calc_chisqr, calc_data_sum, calc_data_sum2d, calc_energy_flux, calc_ftest, calc_kcorr, calc_mlr, calc_model_sum, calc_model_sum2d, calc_photon_flux, calc_source_sum, calc_source_sum2d, calc_stat, eqwidth, get_rate
contour, contour_data, contour_model, contour_ratio, contour_resid, get_ratio, get_resid, histogram1d, histogram2d, image_data, rebin

Last modified: December 2010
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